CVE-2009-1086: Buffer Overflow
First published: Wed Mar 25 2009(Updated: )
Heap-based buffer overflow in the ldns_rr_new_frm_str_internal function in ldns 1.4.x allows remote attackers to cause a denial of service (memory corruption) and possibly execute arbitrary code via a DNS resource record (RR) with a long (1) class field (clas variable) and possibly (2) TTL field.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| NLnet Labs LDNS | =1.4.0 | |
| NLnet Labs LDNS | =1.4.1 |
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Reference Links
- http://www.nlnetlabs.nl/bugs/show_bug.cgi?id=232
- http://www.openwall.com/lists/oss-security/2009/03/24/4
- http://www.securityfocus.com/bid/34233
- http://www.nlnetlabs.nl/svn/ldns/tags/release-1.5.0/Changelog
- http://secunia.com/advisories/35013
- http://www.debian.org/security/2009/dsa-1795
- http://lists.opensuse.org/opensuse-security-announce/2009-05/msg00000.html
- http://secunia.com/advisories/35065
Frequently Asked Questions
What is the severity of CVE-2009-1086?
CVE-2009-1086 has a high severity rating due to its potential to cause denial of service and possible arbitrary code execution.
How do I fix CVE-2009-1086?
To fix CVE-2009-1086, update ldns to the latest version that addresses the buffer overflow vulnerability.
What software versions are affected by CVE-2009-1086?
CVE-2009-1086 affects ldns versions 1.4.0 and 1.4.1.
What type of vulnerability is CVE-2009-1086?
CVE-2009-1086 is a heap-based buffer overflow vulnerability.
How does CVE-2009-1086 exploit occur?
CVE-2009-1086 can be exploited by sending a DNS resource record with excessively long class or TTL fields.
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- agent/last-modified-date
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- vendor/nlnetlabs
- canonical/nlnet labs ldns
- version/nlnet labs ldns/1.4.0
- version/nlnet labs ldns/1.4.1